:target doesn't match elements on initial page load in Chrome and Firefox #2679
Description
I'm able to reproduce this issue in Firefox 41.0.2 and Chrome 46.0.2490.80 m
Basically, selecting $(':target') during initial page load to a url that contains a document fragment fails to select the targeted element.
<!DOCTYPE html>
<html>
<head>
<title>:target Bug</title>
<style>
:target {
background-color: red;
}
</style>
</head>
<body>
<a href="#test" id="test">Test</a>
<script src="http://code.jquery.com/jquery-2.1.4.js"></script>
<script>
$(':target').css('color', 'yellow');
$(location.hash).css('border', '10px solid green');
console.log('initial page request', document.querySelector(':target'));
document.body.onload = function () {
console.log('page load', document.querySelector(':target'));
}
</script>
</body>
</html>
This is caused by document.querySelectorAll(':target') returning null before page load (and sometimes it returns null after page load). Sizzle pipes the selector through querySelectorAll, which produces incorrect results.
I've created a codepen that shows this behavior. Please view it in debug mode with the document fragment.